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Fine, white needle-like crystalline powder that is used as a Preservative in paints, food, beverages, and cosmetics. Methylparaben inhibits mold growth.

Synonyms and Related Terms

methyl hydroxy benzoate; methyl p-hydroxybenzoate; 4-hydroxybenzoic acid methyl ester; Nipagin M; Tegosept M; Methyl Chemosept; Methyl Parasept

Chemical structure


Other Properties

Soluble in ethanol, acetone, ether and warm oil. Slightly soluble in water, benzene and carbon tetrachloride.

Composition CH3OOCC6H4OH
CAS 99-76-3
Melting Point 131
Density 1.36
Molecular Weight mol. wt. = 152.16
Boiling Point 270-280(dec)

Hazards and Safety

Toxic. Maximum concentration in food is limited to 0.1%.

Mallinckrodt Baker: MSDS

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Notes for Workshop on New Methods in the Cleaning of Paintings, J.Paul Getty Trust, Los Angeles, 1990
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 6182

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